Everlast takes the popular fitness balls in an entirely new direction with the Stability Ball Pro. The Stability Ball Pro is the first exercise ball to employ technology found in medicine balls to add weight to the ball. The 3 pound weight in the Stability Ball Pro makes your workouts more effective at burning calories and toning muscles, almost as if it were two workouts in one. The Stability Ball Pro also comes with a dual action pump so it can be inflated quickly and easily. The tutorial DVD shows the various exercises you can do with the Stability Ball Pro in precise detail so you can quickly make the most of your Stability Ball Pro.